1979996360

素因数分解:

$2^3\times 5^1\times {\mathrm{49499909}}^1$

素因数の和:49499920

約数の個数: 16

約数和(自身を含む): 4454991900

約数和(自身を除く): 2474995540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49499909, 98999818, 197999636, 247499545, 395999272, 494999090, 989998180, 1979996360]

約数ペア:

[(1, 1979996360), (2, 989998180), (4, 494999090), (5, 395999272), (8, 247499545), (10, 197999636), (20, 98999818), (40, 49499909)]